Datasheet

MAX13330/MAX13331
Automotive DirectDrive Headphone Amplifiers
with Output Protection and Diagnostics
6 _______________________________________________________________________________________
CROSSTALK vs. FREQUENCY
MAX13330/31 toc19
FREQUENCY (kHz)
CROSSTALK (dB)
0.1 1 10
-80
-60
-40
-90
-70
-50
-100
0.01 100
V
IN
= 200mV
P-P
R
L
= 32Ω
RIGHT TO LEFT
LEFT TO RIGHT
GAIN FLATNESS vs. FREQUENCY
MAX13330/31 toc20
FREQUENCY (kHz)
GAIN (dB)
1000.1 101
3.2
3.4
3.5
3.1
3.3
3.0
0.01 1000
MAX13330
V
IN
= 100mV
P-P
OUTL
OUTR
Typical Operating Characteristics (continued)
(V
DD
= V
CPVDD
= 5V, V
SGND
= V
PGND
= 0V, C1 = C2 = 1µF, R
L
= ∞, gain = -1.5V/V, THD+N measurement bandwidth = 22Hz to 22kHz,
T
A
= +25°C, unless otherwise noted.)
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY
MAX13330/31 toc18
FREQUENCY (kHz)
PSRR (dB)
100.1 1
-100
-40
-110
-80
-60
-50
-90
-70
-120
0.01 100
V
DD
= 5V
OUTR
V
DD
= 5V
OUTL
V
RIPPLE
= 100mV
P-P
R
L
= 32Ω
V
DD
= 4V
OUTR
V
DD
= 4V
OUTL
SUPPLY CURRENT vs. SUPPLY VOLTAGE
MAX13330/31 toc22
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.254.75 5.004.50
5
7
10
2
1
6
9
4
3
8
0
4.00 4.25 5.50
SUPPLY CURRENT vs. TEMPERATURE
MAX13330/31 toc23
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
075-25 100
6
10
12
4
2
8
0
-50 5025 125
OUTPUT FFT
MAX13330/31 toc21
FREQUENCY (kHz)
AMPLITUDE (dBV)
10 15
R
L
= 32Ω
-40
-20
0
-100
-120
-60
-80
-140
05 20
SHUTDOWN CURRENT vs. SUPPLY VOLTAGE
MAX13330/31 toc25
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (μA)
5.004.25 4.754.50
4
5
3
2
1
0
4.00 5.25 5.50
EXITING SHUTDOWN TRANSIENT
MAX13330/31 toc26
200
μ
s/div
V
OUTL
1V/div
V
OUTR
1V/div
V
SHDN
5V/div
SHUTDOWN CURRENT vs. TEMPERATURE
MAX13330/31 toc24
TEMPERATURE (°C)
SHUTDOWN CURRENT (μA)
075-25 100
2.0
3.5
4.0
1.5
1.0
3.0
0.5
2.5
0
-50 5025 125